Earth Science - 5A : Section Review Questions

How do we know that there were glaciers in some parts of the earth where there aren't any now?

- glacial ridges - u-shaped valleys that were bulldozed by the glacier

What are the two ways that geologists can date a rock stratum?

- relative age dating - radiometric dating

How can we tell that the rocks on Earth's surface have changed during its history?

- rock strata - geologic column

What evidence suggests that the continents weren't always in the same places as they are now?

- same magnetic signatures are found on opposite sides of the ocean - could have fit together like a puzzle

Name the tectonic plates that contain portions of all fifty states of the United States.

North American and Pacific plates

How can two people look at the same evidence and present two very different stories of the earth's history of change?

bases on their worldview

(True or False) Only secular scientists change their models so that the evidence they observe fits their story.

false: secular and Christian scientist change their models

What do the rocks tell us about life on Earth in the past?

fossils contain fossils that show us what type of life existed at different times

What do geologists believe is the driving force for seafloor spreading?

rising plumes of hot magma that moves the plates causing the crust to spread apart

What scientific evidence shows that some of the woolly mammoths died suddenly?

was found ... - with food was found in their stomachs - grass attached to them - no decay of the carcass - standing up